Design and Implementation of a 3.5 kVA Standalone Solar Inverter System for Educational Broadcasting

Photovoltaic (PV) devices are increasingly recognised as a sustainable renewable energy source for electricity generation. However, their effectiveness is limited by the fact that they can only harness high-energy photons (visible and ultraviolet) from the sun's spectrum, which restricts their application in large-scale power generation. In renewable energy systems, batteries serve the purpose of storing energy for future use. The most commonly utilised storage solution currently available on the market is the recently introduced technology. The energy stored in a battery is classified as low-voltage DC. Since alternating current (AC) is generated by standard home AC systems, it cannot be stored. This device is referred to as an inverter. This primarily focuses on the design and installation of a 3.5 kVA solar energy system for the Federal University Oye-Ekiti, Ikole Campus Training FM Radio. The FM Training radio station in Ikole requires a reliable and continuous power supply. The inverter circuit utilises components such as transformers, switching transistors, and control circuits to generate AC electricity. Typically, this system comprises a battery bank, a power conversion circuit (inverter), and a microcontroller or control circuit to manage the process. The battery bank serves as the DC power source, and the microcontroller can be programmed to switch between the AC grid and the battery source to regulate the power supply. To optimise solar energy collection, the solar panel was installed outside the building. This system is capable of effectively powering the FM training radio at FUOYE Ikole Campus even in the absence of central power, thereby fulfilling its training obligations consistently.